Commit be43f83d authored Dec 18, 2009 by Sheng Yang Committed by Marcelo Tosatti Mar 01, 2010

x86: Raise vsyscall priority on hotplug notifier chain



KVM need vsyscall_init() to initialize MSR_TSC_AUX before it read the value.
Per Avi's suggestion, this patch raised vsyscall priority on hotplug notifier
chain, to 30.

CC: Ingo Molnar <mingo@elte.hu>
CC: linux-kernel@vger.kernel.org
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent 2bf78fa7

arch/x86/kernel/vsyscall_64.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -301,7 +301,8 @@ static int __init vsyscall_init(void)
	register_sysctl_table(kernel_root_table2);		register_sysctl_table(kernel_root_table2);
	#endif		#endif
	on_each_cpu(cpu_vsyscall_init, NULL, 1);		on_each_cpu(cpu_vsyscall_init, NULL, 1);
	hotcpu_notifier(cpu_vsyscall_notifier, 0);		/* notifier priority > KVM */
			hotcpu_notifier(cpu_vsyscall_notifier, 30);
	return 0;		return 0;
	}		}